FWIW I was using LogSeq for a while because I wanted a FOSS obsidian equivalent... As I discovered, it isn't really an equivalent at all, it's very much it's own thing. One thing LogSeq really doesn't do well is long form notes, I tried using it in combination with Zettlr for long form notes, which was good when I was doing my academic and engineering work, but didn't really fit with my personal notes very well.

I recently decided to try LogSeq and Obsidian together and so far I'm finding it really works well. I treat LogSeq as my daily notepad, I put in my tasks and small thoughts. I use Obsidian for my more permanent, bigger notes about things. My LogSeq graph and Obsidian vault are the same folder, and I have it configured so both use the same date format and assets folder. The only thing I've yet to check is if I can use YAML front matter in LogSeq in place of their style of front matter, because they would make the notes fit together much better.